Web TechnologiesCourse and practice

Cheat sheet: The request path

The 41 terms of this lesson, part by part, with the French word a team in France would use.

Back to the lessonAll terms

1. The parts of a web address

Web addressURL, adresse web
the text that leads to one page on the web, such as https://www.leboncoin.fr/recherche.
Schemeprotocole
the start of a web address, such as https, which says how the browser and the server talk.
Domain namenom de domaine
the readable name of a website, such as leboncoin.fr, which its owner rents by the year.
Pathchemin
the part of a web address after the domain, such as /recherche, which names one page of the site.
Queryparamètres d'URL, query string
the part of a web address after the ?, which holds details such as the words you searched for.
Fragmentancre
the part of a web address after a #, which points to a place on the page and is never sent to the server.
UTM parametersparamètres UTM
labels added to the query of a link, which tell the marketing team where a visitor came from.
IP addressadresse IP
the numeric address that computers on the internet use to find and reach each other.

2. From address to page

DNSDNS
the internet's directory, which converts a domain name into the IP address of the site's server.
IP addressadresse IP
the numeric address that computers on the internet use to find and reach each other.
Serverserveur
a computer that stays connected to the internet, sends pages to browsers and keeps the data that people share.
HTTPSHTTPS
the encrypted connection between a browser and a site, shown by the padlock next to the address.
Certificatecertificat SSL
a digital file that proves a site really owns its address, which the browser checks before it shows the padlock.
HTMLHTML
the language that holds a page's content and labels what each part is, such as a heading, a link or a list.
Style sheetfeuille de style
a CSS file that sets the look of a page, such as its colours, fonts and layout.
Scriptscript
a file of JavaScript code that a page loads, which the browser runs to change the page while it's open.

3. One request, one response

Requestrequête
a message that a browser sends to a server to ask for a file or data, or to send it something.
Responseréponse
the message a server sends back for each request, made of a status code, headers and a body.
Status codecode de statut, code HTTP
a three-digit number in each response that says what happened, such as 200 for success or 404 for a missing page.
Headeren-tête, header
a label in a request or a response that gives details about it, such as the type of file or how long to keep it.
Bodycorps de la réponse
the main content of a response, such as the HTML of a page or an image file.
Redirectredirection
a response that tells the browser to go to another address, for example from http to https.
Developer toolsoutils de développement
the panels built into every browser, opened with F12, that show a page's code, style rules and errors.
Network panelonglet Réseau
the part of the developer tools that lists every request a page makes, with its status and size.

4. Copies of the files, close to you

CDNCDN
a network of servers in many cities that keeps copies of a site's files and sends them from near each visitor.
Cachecache
a store of files kept for reuse, for example in your browser, so they don't have to be downloaded again.
DNSDNS
the internet's directory, which converts a domain name into the IP address of the site's server.
DDoS attackattaque DDoS
an attack that sends a huge number of requests to a site to overload it until it stops working.

5. When a site is slow in only one place

LighthouseLighthouse
a free audit in Chrome's developer tools that scores a page's speed and accessibility and lists its problems.
Latencylatence
the time a request waits before its answer starts to arrive, which is much longer on a weak mobile connection.
Page weightpoids de la page
the total size of all the files a page downloads, measured in megabytes (MB).
Third-party scriptscript tiers
a script from another company that a page loads, such as an ad, a chat window or an analytics tool.
Trackertraceur, tracker
a script that records what visitors do on a site, often to show them targeted ads.
Throttlingthrottling, bridage réseau
a setting in the developer tools that makes the connection slow on purpose, to test a page.

6. What to ask

Page weightpoids de la page
the total size of all the files a page downloads, measured in megabytes (MB).
Megabytemégaoctet, Mo
a unit of file size, written MB, often used for photos, videos and the weight of a web page.
Requestrequête
a message that a browser sends to a server to ask for a file or data, or to send it something.
Third-party scriptscript tiers
a script from another company that a page loads, such as an ad, a chat window or an analytics tool.
Analyticsmesure d'audience, analytics
an outside service that counts visits and records what visitors do on a site, such as Google Analytics.
Consent bannerbandeau de consentement, bandeau cookies
the box that asks visitors to accept or refuse cookies and trackers when they arrive on a site.
CDNCDN
a network of servers in many cities that keeps copies of a site's files and sends them from near each visitor.

Web Technologies · The map · wt.thomasjuldo.com/course/the-map/request-path